Williams, George Bransby, <br/><br/>
The purification of water supplies, 
by George Bransby Williams. 
 - 2d ed. (rev.) 
 - London,  Chapman & Hall ltd.,  1946. 
 - 95 p.  diagrs. (1 fold.)  22 cm. 
<br/><br/> "First published 1944." 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE<br/>Water--Purification.
<br/><br/><label>Dewey Class. No.: </label>628.1  / BRA